New York's anti-terrorism chief urged the US authorities to initiate and introduce new national laws to mitigate the threat of internal extremists like the people responsible for the unrest at the US Capitol last week.

The Chief, John Miller said, "We don't have domestic terrorism laws that measure up to that level, as we do with foreign." 

He highlighted that US has been hesitant to introduce such laws and said the authorities need to review the situation in light of the recent violent incident which resulted in the death of five people.

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Miller added, "There should not be a laundry list of federal statutes that we have to kind of call through to figure out which one we can fit to an individual crime. There should be an overarching statute that covers domestic terrorist organizations. And if nobody thought that was a good idea two weeks ago, they should probably be thinking about it again now." 

Currently, the domestic laws in US allow prosecutors press charges on any individual who demonstrates any support for a designated foreign terrorist or radical group. 

However, Americans can not be prosecuted if they post on an online platform in support of a neo-Nazi group located within the national borders of US. 

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Policy analysts in the US have highlighted that US is underprepared to handle the threat of violence from far-right groups than it is with International threats, AFP reported. 

Some 70 people have been indicted on charges related to the riot on January 6, with federal prosecutors saying they expect hundreds more in the coming months.

Authorities fear further violence ahead of Joe Biden's inauguration as president on Wednesday. The center of Washington DC is under lockdown and more than 20,000 National Guards have been mobilised.